Gold-washing machine.



J. M. CARTER.

GOLD WASHING MACHINE.

11121110111011 FILED OUT. 2, 1911.

Patented Sept. 3,1912.

3mm 4 1 L]. Uarwr,

COLUMBIA PUNOORAPH CO" WASHINGTON, D- Ch.

7' UNITED sTArnflEN oFFIoE.

JAMES M. CARTER, OF PENDLETON, OREGON.

GOLD-WASHING MACHINE.

Application filed October 2,; 1911. Serial No. 652,418.

To all whom it may concern:

citizen of the United States, residing at Pendleton, in the county of Umatilla and State of Oregon, have invented certain new and useful Improvements in Goldfi/Vashing:

Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to gold washing machines, and has for its object to produce a device of this character wherein the material to be acted upon is conveyed to the device.

A further object of the invention is to provide a device of this character which when in operation will effectually separate the gold and finer material, the larger or coarser material being readily removablefrom the device.

Other objects of this invention will become apparent as it is more fully set forth.

In the accompanying drawings, Figure 1 is a side elevation of the device, partly in section; Fig. 2 is a top plan view of the device.

Referring to the drawing, the numeral 1 designates a tub, preferably circular in cross section and being supported upon legs 2.

The bottom 3 of the tub is provided with a central opening 4, the purpose of which will be hereinafter described. Mounted within opening 4 formed in the bottom 3 of thetub.

Mounted upon the upper edge of the tub 1 is a transversely arranged supporting bar 7, and upon which is mounted a bracket 8, said bracket consisting of a top bar 9, and vertical arms 10, the lower ends of which are bolted or otherwise suitably secured to the supporting bar 7. The top bar 9 is provided with a central perforation 11. Formed in the central portion of the supporting bar 7 is an opening 12, said opening being adapted to register with the perforation 11 formed in the top bar 9. Passing through the openings 11 and 12 is a vertical shaft 13 and to which is fiXed a bevelpinion 14, said pinion being arranged Be 1t known that 1, JAMES M. CARTER, a.

upon the upper surface of the supporting bar 7. To the lower end of the shaft 13 is fixed a. disk 15,, said disk beingprovided witha plurality of perforations lti. The disk15 is thus supported at the upper end of the conical receptacle 5, and is adapted to rotate rapidly upon movement being imparted to the shaft 13.

Mounted upon the supporting bar 7, and adjacent one end thereof, are boxes 17 and 17 and in which is journaled the shaft 18, the inner end of which is provided with a fixed bevel pinion 19, which is adapted to mesh with the bevel pinion 14. The outer end of the shaft 18 may be provided with a crank handle, the same may have secured thereto a belt pulley, so that the same may be rotated to operate the disk 15.

Formed near the upper edge of the tub 1 is an opening 20, and below which is secured a pair of spaced brackets 21, and in which is journaled the shaft 22, the opposite ends of which are provided with sprocket wheels 23. Fixed to the brackets 21 is the inner end of a platform 24, over and around which passes an endless belt 25, said belt being operated in any well known. manner, and being provided with a series of transversely arranged flights 26.

The endless conveyer 27 is provided, and arranged in such relation to the upper edge of the tub 1, that the material to be acted upon is discharged therefrom into the tub and upon the disk 15. Upon the rapid rotation of the disk 15 the material is treated to a centrifugal action, whereby the finer material such as gold and sand are passed through the perforations formed in the from thence through the neck 6 into the sluice box or trough. 27 arranged directly under the bottom of the tub 1, to be treated in the usual manner.

The material to be treated ofttimes contains stones or rocks of such dimensions that the same cannot pass through the perforations 16 formed in the disk 15, therefore a deflector 28 is provided and is secured to the tub 1 and adjacent the opening 20 formed therein, so that such large particles will be projected by the centrifugal force against the deflector, and from thence will gravitate to the endless belt 25, the jar in- Specification of Letters Patent. Patented Sept. 3, 1 912.

cident upon the stones and rocks falling upon the belt 25 being taken up by the platform 24, around which the belt 25 passes.

Having thus described the invention, I elaim:

An ore grading machine, including a tub, the bottom of which has formed therein a central opening, a conical receptacle mounted in the tub and having its lower end formed with a neck adapted to pass through said opening, the said tub formed with an opening on one side near the top thereof, a horizontally disposed perforated disk disposed in said tub at the lower edge of said opening at the side thereof, said disk being flush with the upper edge of the said conical receptacle, means for rotating said disk,

and conveyers disposed on the opposite sides of said tub.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

Copies of this patent may be obtained for five. cents each, by addressing the Commissioner of Patents, Washington, D. 0'." 

